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4 wire to 5 pin cobra
4 wires to 5 pin cobra an easy to do thing
pin 1 mic or audio + mic hot to this pin
pin 2 shield or ground - mic ground to this pin
pin 3 receive - from this pin jumper to pin 4
pin 4 switching wire - ptt ground to this pin
pin 5...
cobra 200 gtl mosfet
replacemment for the rd16hhf1 is the 2sc1969 works great is more stable and better transistor is rated at 27.000 mhz 16 po.out w..and the rd16hhf1 at 30.000 16 po.out mhz good luck :headbang
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